[GitHub] [spark] srowen commented on a change in pull request #30889: [SPARK-33398] Fix loading tree models prior to Spark 3.0

[GitBox <gi...@apache.org>]

srowen commented on a change in pull request #30889:
URL: https://github.com/apache/spark/pull/30889#discussion_r596022053



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File path: mllib/src/main/scala/org/apache/spark/ml/tree/treeModels.scala
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@@ -401,8 +403,13 @@ private[ml] object DecisionTreeModelReadWrite {
     }
 
     val dataPath = new Path(path, "data").toString
-    val data = sparkSession.read.parquet(dataPath).as[NodeData]
-    buildTreeFromNodes(data.collect(), impurityType)
+    var df = sparkSession.read.parquet(dataPath)

Review comment:
       It was reported vs 3.0.1, see JIRA. Looks like 3.0.2




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